Stomach bleeding is what happens when you pull black.

Gastric bleeding is usually caused by improper diet, gastric ulcer, stomach tumor and other reasons.

1, improper diet

if long-term alcohol abuse, gastric mucosa in the stimulation of alcohol damage, causing gastric bleeding, blood into the intestinal tract after oxidation and feces together with the discharge, resulting in black feces.

2, gastric ulcer

gastric ulcer patients gastric mucosa and deep gastric wall ulcers, submucosal blood vessels will rupture bleeding, causing the above phenomenon.

3, stomach tumor

if suffering from stomach tumor, tumor performance is weak, prone to damage, causing bleeding, blood in the gastrointestinal tract for a long time will be oxidized, leading to color deepening, causing black stool.